The Comparative Analysis :

Bentley Mulsanne Speed Automatic (16 - ..) vs. Mercedes S 420 CDI 7G-TRONIC (06 - 09)

€ 330,500
Bentley Mulsanne Speed Automatic (16 - ..) Bentley Mulsanne Speed
€ 91,100
 Mercedes S 420 CDI 7G-TRONIC (06 - 09) Mercedes S 420 CDI
€ 330,500
Base Price ⓘBase price of a new vehicle with standard equipment in Germany at market launch.
€ 91,100

ⓘBase price of a new vehicle with standard equipment in Germany at market launch. Price Info

Vehicle Dimensions

The Bentley Mulsanne Speed is significantly bigger in every dimension. It's 19.5 inches longer, 2.2 inches wider and 1.9 inches taller than the Mercedes S 420 CDI.
Bentley Mulsanne Speed
Mercedes S 420 CDI
59.9
Blueprint Bentley Mulsanne Speed Automatic (16 - ..)
75.8
86.9
58
Blueprint Mercedes S 420 CDI 7G-TRONIC (06 - 09)
73.7
83.5
75.8 in
Width
73.7 in
86.9 in
Width Incl. Mirrors
83.5 in
59.9 in
Height
58 in
Blueprint Bentley Mulsanne Speed Automatic (16 - ..)
128.6
219.5
Blueprint Mercedes S 420 CDI 7G-TRONIC (06 - 09)
119.5
200
219.5 in
Length
200 in
128.6 in
Wheelbase
119.5 in

Vehicle Weight

Bentley Mulsanne Speed
Mercedes S 420 CDI
5919 lb
Curb Weight
4608 lb
7055 lb
Gross Vehicle
Weight
5820 lb
Bentley Mulsanne Speed Automatic (16 - ..)
Weight Difference:
1312 lb
22.16 %
Mercedes S 420 CDI 7G-TRONIC (06 - 09)

General

Bentley Mulsanne Speed
Mercedes S 420 CDI
Mulsanne
Generation
W221
Sedan
Car Body Style
Sedan
Premium Unleaded
Fuel Type
Diesel
Rear-wheel drive
Drivetrain
Rear-wheel drive
8-speed automatic transmission
Transmission
7-speed automatic transmission

Engine

Bentley Mulsanne Speed
Mercedes S 420 CDI
V8 gasoline engine with two tur­bo­chargers (bi­turbo)
Engine Type
V8 diesel engine with tur­bo­charger
Rolls-Royce–Bentley L-series V8
Engine Series
Mercedes-Benz OM 629
CZMB
Engine Code
OM 629.911
4
Valves
4
8
Cylinders
8
6.8 L / 333 cu in
Displacement
4 L / 196 cu in
530 hp
at 4000 rpm
Power
316 hp
at 3600 rpm
Bentley Mulsanne Speed
530 hp
316 hp
Mercedes S 420 CDI
811 lb‑ft
at 1750 rpm
Max. Torque
538 lb‑ft
at 2200 rpm
Bentley Mulsanne Speed
811 lb‑ft
538 lb‑ft
Mercedes S 420 CDI

Performance

Bentley Mulsanne Speed
Mercedes S 420 CDI
190 mph
Maximum Speed
155 mph
4.9 sec
Acceleration 0 to 62 mph
6 sec
62 mph 62
mph

223 ft
0.000 sec

Bentley Mulsanne Speed

62 mph 62
mph

272 ft
0.000 sec

Mercedes S 420 CDI

▶ REPLAY
11.17 lb/hp
Weight-to-Power Ratio
14.58 lb/hp
Bentley Mulsanne Speed
11.17 lb/hp
14.58 lb/hp
Mercedes S 420 CDI

Fuel Economy / Emissions

Bentley Mulsanne Speed
Mercedes S 420 CDI
Fuel Economy
16 mpg
combined
25 mpg
Bentley Mulsanne Speed
16 mpg
25 mpg
Mercedes S 420 CDI
10 mpg
city
18 mpg
No data
highway
33 mpg
Kraftstoffanzeige
25.4 gal
Fuel Tank Capacity
23.8 gal
Kraftstoffanzeige
398 mi
Range
595 mi
Bentley Mulsanne Speed
398 mi
595 mi
Mercedes S 420 CDI
Environmental Impact
284.2 kWh
Total Energy Consumption
per 100 miles ⓘThe total energy consumption per 100 miles is the amount of energy consumed by a vehicle when burning fuel or using electricity per 100 miles (final energy), and the energy required to produce the appropriate amount of fuel or electricity (primary energy).
193.4 kWh
Bentley Mulsanne Speed
284.2 kWh
193.4 kWh
Mercedes S 420 CDI
Euro 6
Emission Standard
Euro 4 III
550 g/mi (NEFZ)
CO2 Emissions
398 g/mi (NEFZ)

Practical Convenience

Bentley Mulsanne Speed
Mercedes S 420 CDI
4
Doors
4
4
No. of Seats
5
1135 lb
Maximum Payload
1213 lb
12.5 cu ft
Trunk Volume
15.9 cu ft
No data
Cargo Volume (Seats Down)
No data